/Engine/Source/Editor/Sequencer/Public/MovieSceneOutlinerColumn.h
Gets the widget created for each item within the SOutlinerView, column widgets must be fixed width
[TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SWidget](API\Runtime\SlateCore\Widgets\SWidget) > CreateColumnWidget ( [UE::Sequencer::TViewModelPtr](API\Editor\SequencerCore\TViewModelPtr)< [UE::Sequencer::IOutlinerExtension](API\Editor\SequencerCore\MVVM\Extensions\IOutlinerExtension) > InOutlinerExtension ) const